diff --git a/tests/codes_export_resource.sh b/tests/codes_export_resource.sh
index 4a5c2f322..02774ce58 100755
--- a/tests/codes_export_resource.sh
+++ b/tests/codes_export_resource.sh
@@ -14,7 +14,7 @@ label="codes_export_resource_test"
 temp=temp.$label
 
 # Sample files
-# --------------
+# ----------------
 f='GRIB2.tmpl'
 ${tools_dir}/codes_export_resource -s $f $temp
 cmp $ECCODES_SAMPLES_PATH/$f $temp
@@ -23,6 +23,11 @@ cmp $ECCODES_SAMPLES_PATH/$f $temp
 ${tools_dir}/codes_export_resource -s GRIB2 $temp
 cmp $ECCODES_SAMPLES_PATH/GRIB2.tmpl $temp
 
+# IFS Samples
+# ----------------
+ECCODES_SAMPLES_PATH=/MEMFS/ifs_samples/grib1_mlgrib2  ${tools_dir}/codes_export_resource  -s gg_ml.tmpl $temp
+
+
 # Definition files
 # ----------------
 f='boot.def'
@@ -34,5 +39,21 @@ ${tools_dir}/codes_export_resource -d $f $temp
 cmp $ECCODES_DEFINITION_PATH/$f $temp
 
 
+# Failing cases
+# ----------------
+set +e
+${tools_dir}/codes_export_resource -d nonexistent $temp
+status=$?
+set -e
+[ $status -eq 1 ]
+
+set +e
+${tools_dir}/codes_export_resource -s nonexistent $temp
+status=$?
+set -e
+[ $status -eq 1 ]
+
+
+
 # Clean up
 rm -f $temp